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104 Set Trial Lens Set with Trial Frame
You are bidding on an Optometrist trial lens set with negative cylinders only, designed for use by Optometrist on clinic or mission work.
The set includes:
Positive spheres:
0.25, 0.50, 0.75, 1.00, 1.25, 1.50, 1.75, 2.00, 2.25, 2.50, 3.00, 3.50, 4.00, 4.50, 5.00, 6.00, 7.00, 8.00, 10.00
Negative spheres:
0.25, 0.50, 0.75, 1.00, 1.25, 1.50, 1.75, 2.00, 2.25, 2.50, 3.00, 3.50, 4.00, 4.50, 5.00, 6.00, 7.00, 8.00, 10.00
Negative cylinders:
0.25, 0.50, 0.75, 1.00, 2.00, 3.00, 4.00, 5.00, 6.00
Prism:
0.50, 1.00, 2.00, 3.00
Accessories:
Black, Red , Pinhole, Slit, Frosted and Cross Cylinder 0.25 The tray is
removable and the case is imitation leather.
Lens are made of glass with metal rings.
The sets are new!
Lens Set Spec Chart
Deluxe Trial Frames also included!
specifications:
Range of PD adjustments:
PD of both eyes: 48 ~ 80mm
left or right PD: 24 ~ 40mm
Minimum graduated value: 1mm
Dividing disc axial graduation:
Left dividing disc:
120degree~0degree~135 degree
Right dividing disc:
45degree~180degree~60degree
Axial graduation increases along the lens frame axis counter clockwise,and the graduated distance is 50.
Inner diameter of lens frame:
32.5mm.
Number of lens which can be inserted into left or right lensframe simultaneously:
4 pieces
Degree of lens rotating around optical axis in the lens frame:
360 degree.
Nonparallelism between lens´optical axis and lens frame´s geometric axis:
≤2.5 degree.
Non-concentricity between lens´optical center and lens frame geometric center:
≤0.5mm.
Displacement of lens in relation to position of lens frame geometric center:
≤0.3mm.
Range of nose rest adjustment: Length:0 ~ 14mm;
angle:0 degree ~ 30 degree
Range of left or right lens frame leg´s length adjustment:
98 ~ 135mm.
Maximum interval between left and right lens frame legs:200mm.
Weight:70g
The sale of
this item may be subject to regulation by the U.S. Food and Drug
Administration and state and local regulatory agencies. If so, do not
bid on this item unless you are an authorized purchaser. If the item is
subject to FDA regulation, I will verify your status as an authorized
purchaser of this item before shipping of the item.
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